Optimisation of electrochemical deposition of calcareous material during cathodic protection by implementing response surface methodology (RSM). (10th March 2023)

• Record Type: Journal Article
• Authors: Sharker, Tanzila; Simonsen, Kenneth R.; Margheritini, Lucia; Kucheryavskiy, Sergey V.; Simonsen, Morten E.
• Is Part Of: Electrochimica acta. Volume 444(2023)
• Publication Date: 2023-03-10
• Subjects: Carbon steel -- Cathodic protection -- Electrochemical deposition -- Corrosion inhibition -- Response surface methodology; Electrochemistry -- Periodicals; Electrochemistry, Industrial -- Periodicals; 541.37
• DOI: 10.1016/j.electacta.2023.141960
• Languages: English
• ISSNs: 0013-4686

Abstract

Highlights: Electrochemical deposition technology for protection against corrosion. Response surface methodology for modelling of deposited calcareous material (operational factors: Temperature and Current density). Analysis of electrodeposited calcareous material. Surface imaging of electrodeposited material on carbon steel cathodes (SEM-EDX). Abstract: This paper investigates the deposition of calcareous material on carbon steel through cathodic protection. A Response Surface Methodology (RSM) was applied to model the electrodeposition of calcareous material in ASTM seawater by varying temperature and current density parameters. The calcareous deposit was more compact at a current density ≤ 150 µA/cm 2 . At least 55 µA/cm 2 current density was required to provide cathodic protection and initiate electrodeposition, thus inhibiting corrosion. Furthermore, the produced RSM models can predict the amount and composition of the material at 55 – 310 µA/cm 2 current density and 4 – 25 °C temperature. Graphical abstract: Image, graphical abstract